6 ideas
A corporation is a state in the political sense: a community that sets rules, gathers resources, has rivals and factions, and survives by the loyalty of its members. Management therefore belongs to political science, and the recorded history of kings, empires and courts becomes a large, tested case library for corporate problems that business literature has barely documented.
Divisional heads who control their own resources, staff loyalties and profit streams become barons: nominally subordinate to the chief executive but able to resist or bargain with the centre. The ruler's core task is to let barons run their territories well while stopping any of them from growing strong enough to challenge the throne. That means controlling appointments, money and information rather than daily operations.
A new chief executive has a brief period when the organization expects change and old loyalties are loose. Necessary removals and restructurings should happen at once and all together, not in instalments. Harm spread out over time keeps everyone anxious and hostile, while benefits should be handed out gradually so they are felt and remembered.
An acquired or distant subsidiary with its own history and customs is a conquered province and will revolt if ruled carelessly. The parent must either put trusted people of its own inside it, or leave local customs and leaders largely intact while holding a few decisive controls. Half-measures that humiliate the locals without securing real control produce the worst outcome.
Around any powerful chief executive a court forms: people whose influence comes from access to the leader rather than from line responsibility. Courtiers filter information, flatter and compete for favour, so the leader's picture of the organization drifts from reality. A prince has to deliberately build channels that go around the court if he is to hear the truth.
Large organizations stay vital when they are built as federations of small, largely self-governing teams with clear shared objectives. Imposing uniform central procedures on every unit smothers initiative.